摘要
采用加压差示扫描量热法(PDSC)考察了酚型抗氧剂(Vanlube BHC)、烷基化苯胺抗氧剂(Vanlube961)、硫代氨基甲酸酯(Vanlube7723)和氨基甲酸酯复合抗氧剂(Vanlube996E)在聚α-烯烃(PAO)基础油中的抗氧性能和相互配伍后的协同效应。PDSC试验结果表明,抗氧剂Vanlube996E的抗氧化性能最优,然后依次是Vanlube961,Vanlube BHC,最后是Vanlube7723。从各抗氧剂间的协同效应来看,抗氧剂Vanlube996E与Vanlube961抗氧协同性能最好,其次是Vanlube7723与Vanlube961;抗氧剂Vanlube7723、Vanlube996E分别与Vanlube BHC复配后的抗氧协同作用较弱,甚至低于同剂量的Vanlube996E。最后,分析讨论了各抗氧协同配方产生协同效应的原因。
Pressurized differential scanning calorimetry(DSC) was employed to evaluate the antioxidation properties of four antioxidants including phenol antioxidant(Vanlube BHC),methylene dialkyldithiocarbamate(Vanlube 7723),alkylated diphenylamine(Vanlube 961) and complex antioxidant composed of dithiocarbamate with tolutriazole derivative(Vanlube 996E),and their synergistic effects in polyalphaolefin oil(PAO).The results show that Vanlube 996E possesses best antioxidation property,and better than Vanlube 961,Vanlub...
关键词
加压差示扫描量热
润滑油
抗氧剂
协同
Pressurized differential scanning calorimetry（PDSC）
lubricant
antioxidant
synergism
